A、The courses will last 40 minutes. B、The courses couldn’t be selected freely without any requirements. C、All the courses must b

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问题

选项 A、The courses will last 40 minutes.
B、The courses couldn’t be selected freely without any requirements.
C、All the courses must be taken by all freshmen.
D、There are more compulsory courses than optional ones.

答案B

解析
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